Adhyaya 27 - Kausthaki Adhyaya (The Well-Knowledge Chapter)

This Adhyaya contains mantras for esoteric knowledge regarding the inner meaning of sacrifices. It teaches the meditative correspondence between the microcosm (the individual) and the macrocosm (the universe), with the sacrifice serving as the connecting link. This chapter lays the groundwork for the later Upanishadic teachings on the identity of Atman and Brahman.